Update brace style.

Add braces around single-line blocks, and remove line breaks before
function-opening braces.

This resolves #537.
diff --git a/test/unit/hash.c b/test/unit/hash.c
index ff23777..977d058 100644
--- a/test/unit/hash.c
+++ b/test/unit/hash.c
@@ -36,8 +36,7 @@
 } hash_variant_t;
 
 static int
-hash_variant_bits(hash_variant_t variant)
-{
+hash_variant_bits(hash_variant_t variant) {
 	switch (variant) {
 	case hash_variant_x86_32: return (32);
 	case hash_variant_x86_128: return (128);
@@ -47,8 +46,7 @@
 }
 
 static const char *
-hash_variant_string(hash_variant_t variant)
-{
+hash_variant_string(hash_variant_t variant) {
 	switch (variant) {
 	case hash_variant_x86_32: return ("hash_x86_32");
 	case hash_variant_x86_128: return ("hash_x86_128");
@@ -59,8 +57,7 @@
 
 #define	KEY_SIZE	256
 static void
-hash_variant_verify_key(hash_variant_t variant, uint8_t *key)
-{
+hash_variant_verify_key(hash_variant_t variant, uint8_t *key) {
 	const int hashbytes = hash_variant_bits(variant) / 8;
 	const int hashes_size = hashbytes * 256;
 	VARIABLE_ARRAY(uint8_t, hashes, hashes_size);
@@ -139,39 +136,35 @@
 }
 
 static void
-hash_variant_verify(hash_variant_t variant)
-{
+hash_variant_verify(hash_variant_t variant) {
 #define	MAX_ALIGN	16
 	uint8_t key[KEY_SIZE + (MAX_ALIGN - 1)];
 	unsigned i;
 
-	for (i = 0; i < MAX_ALIGN; i++)
+	for (i = 0; i < MAX_ALIGN; i++) {
 		hash_variant_verify_key(variant, &key[i]);
+	}
 #undef MAX_ALIGN
 }
 #undef KEY_SIZE
 
-TEST_BEGIN(test_hash_x86_32)
-{
+TEST_BEGIN(test_hash_x86_32) {
 	hash_variant_verify(hash_variant_x86_32);
 }
 TEST_END
 
-TEST_BEGIN(test_hash_x86_128)
-{
+TEST_BEGIN(test_hash_x86_128) {
 	hash_variant_verify(hash_variant_x86_128);
 }
 TEST_END
 
-TEST_BEGIN(test_hash_x64_128)
-{
+TEST_BEGIN(test_hash_x64_128) {
 	hash_variant_verify(hash_variant_x64_128);
 }
 TEST_END
 
 int
-main(void)
-{
+main(void) {
 	return (test(
 	    test_hash_x86_32,
 	    test_hash_x86_128,